Estimates vary, but remittances from those in the U.S. to their relatives back home could top $130 billion a year. A 2 percent tax could net more than $2 billion a year, if it applied to all money regardless of who’s sending it.
"This bill is simple ‐ anyone who sends their money to countries that benefit from our porous borders and illegal immigration should be responsible for providing some of the funds needed to complete the wall," Rep. Mike Rogers, Alabama Republican, said in a statement. "This bill keeps money in the American economy, and most importantly, it creates a funding stream to build the wall."
Mr. Rogers and Rep. Lou Barletta of Pennsylvania are leading the effort. Mr. Trump has vowed to make Mexico foot the bill for his border wall, but Mexican authorities have said they won’t play along.
Left without a funding source, the president has said American taxpayers will pick up the tab for now, and he’ll look for ways to soak Mexico in the long run.